dd65acf72d
Since commit 6c4fc209fcf9d ("bpf: remove useless version check for prog
load") these "version" sections, which result in bpf_attr.kern_version
being set, have been unnecessary.
Remove them so that it's obvious to folks using selftests as a guide that
"modern" BPF progs don't need this section.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211007231234.2223081-1-davemarchevsky@fb.com
51 lines
1016 B
C
51 lines
1016 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2018 Facebook */
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#include <stddef.h>
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#include <linux/bpf.h>
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#include <linux/types.h>
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#include <bpf/bpf_helpers.h>
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struct {
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__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
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__uint(max_entries, 1);
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__uint(map_flags, 0);
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__type(key, __u32);
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__type(value, __u32);
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} mim_array SEC(".maps");
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struct {
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__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
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__uint(max_entries, 1);
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__uint(map_flags, 0);
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__type(key, int);
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__type(value, __u32);
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} mim_hash SEC(".maps");
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SEC("xdp")
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int xdp_mimtest0(struct xdp_md *ctx)
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{
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int value = 123;
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int *value_p;
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int key = 0;
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void *map;
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map = bpf_map_lookup_elem(&mim_array, &key);
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if (!map)
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return XDP_DROP;
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bpf_map_update_elem(map, &key, &value, 0);
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value_p = bpf_map_lookup_elem(map, &key);
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if (!value_p || *value_p != 123)
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return XDP_DROP;
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map = bpf_map_lookup_elem(&mim_hash, &key);
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if (!map)
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return XDP_DROP;
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bpf_map_update_elem(map, &key, &value, 0);
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return XDP_PASS;
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}
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char _license[] SEC("license") = "GPL";
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